Stereo decoding system capable of reducing the phase shift...

Details Stereo decoding system capable of reducing the phase shift... Stereo decoding system capable of reducing the phase shift...

2006-07-12

2010-10-26

Faulk, Devona E (Department: 2614)

Electrical audio signal processing systems and devices

Binaural and stereophonic

Broadcast or multiplex stereo

C381S002000, C455S255000, C455S260000

Reexamination Certificate

active

07822211

ABSTRACT:
A stereo decoding system comprises an oscillator, a bandpass filter, a PLL unit and a stereo decoder. The oscillator generates a first signal with a center frequency. The bandpass filter receives a stereo multiplexed signal and the first signal to filter out a pilot signal. The PLL unit receives the pilot signal to generate a PLL output signal. The stereo decoder receives the stereo multiplexed signal and the PLL output signal to separate a left channel signal and a right channel signal from the stereo multiplexed signal.

REFERENCES:
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patent: 5526284 (1996-06-01), Mankovitz
patent: 5561849 (1996-10-01), Mankovitz
patent: 6115473 (2000-09-01), Takagi
patent: 2007/0047737 (2007-03-01), Lerner et al.
patent: 2007/0223707 (2007-09-01), Chen
patent: 03077435 (2003-09-01), None

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